Structure 19542 · Dakota County, MN

Csah 47 over Chub Creek

Carries Csah 47 over Chub Creek, 0.1 Mi S Of Jct Csah 88.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT105 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

105 ft end to end, longest span 40 ft. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built200323 years old
Length104.7 ft31.9 m
Daily traffic3,927counted 2022
Last inspectedJanuary 2025every 24 months

Location

StateMinnesota
CountyDakota
Location0.1 Mi S Of Jct Csah 88
CarriesCsah 47
CrossesChub Creek
Coordinates44.52886, -93.07242

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length104.7 ft (31.9 m)
Max Span40.0 ft (12.2 m)
Deck Width47.2 ft (14.4 m)
Deck Area459.4 sq m
Main Spans3
Year Built2003

Traffic

Avg Daily Traffic3,927 (2022)
Truck Traffic19%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number19542

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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